I wanted to test it before making the comment. And I had my doubts, some comments and items found around the Internet, especially on the temperature setting. But he still had to try it, since I had bought. I have tomatoes and apples, and this is the first time I try to make dehydrated fruits and vegetables. The surprise was significant, because nothing of what I read was true. I put apples and tomatoes around midnight, and I left the unit on, thinking that would end 10 hours of morning. Regarding noise, we do not hear from one room to another. Around 6 am, apples was almost ready, I pulled the fruits to 8 hours, fully dried and tasty as I've ever eaten. Tomatoes, exquisite, you feel the flavor and smell of the fruit. The flavor is better than fresh fruit. I think because the device was not completely full that it went faster. Regarding temperature, I could touch the unit because it was warm. The trays are not very high, but you can ask seedless big problem, in terms of prunes, cut them 2. I had never tasted dried fruit as tasty, and they keep their color , not like the ones you buy are almost black. The negatives, but it is the same for all devices, according to I could see: you have to cut even slices, otherwise the drying time is not uniform. The temperature setting, but what I have seen is not very high (I'll measure it), and the trays should be a little deeper to put the whole prunes, for example. I would say this is a great little device for beginners, and for now, I see no reason to buy another. I can not wait to go to the market to buy lots of vegetables and fruits and I will share my experiences. Welcome flavor !!!